Local Calling Guide
Area code/prefix search
Claremont-San Dimas, CA
<< 1 2 3 4 5 6 7 8 9 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 840-277
| 5 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2025-05-29 |
|
| 840-277
| 6 |
|
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2025-05-29 |
|
| 840-277
| 7 |
|
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
730 |
|
2025-10-20 |
|
| 840-277
| 8 |
|
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
2025-12-15 |
|
| 840-277
| 9 |
|
516C AT&T CORP. |
730 |
|
2026-01-06 |
|
| 840-804
| A |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2024-01-23 |
|
| 840-804
| 0 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-04-30 |
|
| 840-804
| 1 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-04-30 |
|
| 840-804
| 2 |
|
145J TERRA NOVA TELECOM INC. |
730 |
|
2025-10-16 |
|
| 840-804
| 3 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2024-02-24 |
|
| 840-804
| 4 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-03-18 |
|
| 840-804
| 5 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-03-18 |
|
| 840-804
| 6 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-03-18 |
|
| 840-804
| 7 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-03-18 |
|
| 840-804
| 8 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-03-18 |
|
| 840-804
| 9 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2023-04-30 |
|
| 840-977
| A |
LSANCAJWIMD |
965H FRACTEL, LLC |
730 |
|
|
|
| 840-977
| 0 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 1 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 2 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 3 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 4 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 5 |
LSANCAJW7MD |
939H COMMIO, LLC |
730 |
|
2021-10-14 |
|
| 840-977
| 6 |
LNBHCAXPXQX |
981E BANDWIDTH.COM CLEC, LLC - CA |
730 |
|
2021-11-22 |
|
| 840-977
| 7 |
LSANCAJWIMD |
965H FRACTEL, LLC |
730 |
|
2021-09-13 |
|
| 840-977
| 8 |
BLTNCAADGMD |
6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
730 |
|
2021-11-01 |
|
| 840-977
| 9 |
LNBHCAXPXQX |
981E BANDWIDTH.COM CLEC, LLC - CA |
730 |
|
2021-10-16 |
|
| 909-207
| A |
LSANCA039MD |
6630 USA MOBILITY WIRELESS, INC. |
730 |
|
|
|
| 909-267
| A |
ONTRCAFXDS0 |
7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
730 |
|
|
|
| 909-267
| 0 |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
2005-07-08 |
|
| 909-267
| 1 |
ONTRCAFXDS0 |
7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
730 |
|
|
|
| 909-267
| 2 |
ONTRCAFXDS0 |
7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA |
730 |
|
|
|
| 909-267
| 3 |
IRVNCASM1MD |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
730 |
|
2007-03-13 |
|
| 909-267
| 4 |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
2008-03-21 |
|
| 909-267
| 5 |
RVSDCALBCM4 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2005-01-03 |
|
| 909-267
| 6 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2008-06-01 |
|
| 909-267
| 7 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2009-04-02 |
|
| 909-267
| 8 |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
2006-01-12 |
|
| 909-267
| 9 |
COVNCAXFXUX |
576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB |
730 |
|
2007-03-13 |
|
| 909-288
| A |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
|
|
| 909-288
| 0 |
SNANCALWDS1 |
7262 XO CALIFORNIA, INC. |
730 |
|
2011-01-17 |
|
| 909-288
| 1 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2011-01-17 |
|
| 909-288
| 2 |
RVSDCALBCM4 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2019-08-11 |
|
| 909-288
| 3 |
RVSDCALBCM4 |
6010 NEW CINGULAR WIRELESS PCS, LLC |
730 |
|
2017-05-08 |
|
| 909-288
| 4 |
COVNCAXFX3Y |
649C ONVOY, LLC - CA |
730 |
|
2017-06-15 |
|
| 909-288
| 5 |
SHOKCA02IMD |
7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA |
730 |
|
2017-11-02 |
|
| 909-288
| 6 |
COVNCAXFXUX |
576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB |
730 |
|
2018-04-29 |
|
| 909-288
| 7 |
COVNCAXFXUX |
576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB |
730 |
|
2018-09-21 |
|
| 909-288
| 8 |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
2019-05-12 |
|
| 909-288
| 9 |
RVSDCAYAGT1 |
6529 T-MOBILE USA, INC. |
730 |
|
2019-04-12 |
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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